body{
    perspective: 20rem;
}
.box img {
    width: 2rem;
    height: 2rem;
}
.box{
    width: 1rem;
    height: 1rem;
    margin: 2rem auto;
    position: relative;
    transform-style: preserve-3d;
    animation: aaa 10s linear infinite;
    
}
@keyframes aaa {
    0%{
        transform: rotateY(0deg);
    }
    100%{
        transform: rotateY(360deg);
    }
}
.box div{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* background: url(../img/qq.jpg) no-repeat; */
}
.box div:nth-child(1){
    transform: translateZ(3rem);
}
.box div:nth-child(2){
    transform: rotateY(60deg) translateZ(3rem);
}
.box div:nth-child(3){
    transform: rotateY(120deg) translateZ(3rem);
}
.box div:nth-child(4){
    transform: rotateY(180deg) translateZ(3rem);
}
.box div:nth-child(5){
    transform: rotateY(240deg) translateZ(3rem);
}
.box div:nth-child(6){
    transform: rotateY(300deg) translateZ(3rem);
}